Granted Patent
Utility
US 5,162,164 · App. 07/614,033
Dual battery system
Inventors:
Thomas J. Dougherty, Alan J. Klebenow, Edward N. Mrotek, David A. Thuerk, Maurice C. Michaud
Patented Case
View Patent ↗
Granted: Nov 10, 1992
Filed: Nov 15, 1990
Inventors
Thomas J. Dougherty
Alan J. Klebenow
Edward N. Mrotek
David A. Thuerk
Maurice C. Michaud
Assignee (at issue)
Globe-Union Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.